A abrasive copper pad for cleaning, but in the urban definition is as a necessary part of creating a crack pipe. First get yourself a stem. A clear tube..... usually can be purchased at a convienient store with a small rose in it....
cut up the chore boy....stuff a piece in your stem.....about a half inch....and leave about a half inch open on one end...... the chore boy now becomes your filter in your crack pipe..... now lean your headback with the stem in the air....
put yourself a crack rock in the open end and take a fireto the end and suck the crack smoke into your lungs...... exhale...repeat